Question: Who became head of government of Schwerin on 2008-5-1?
Paraphrase: Who was the new head of Government of Schwerin from 2008-5-1?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1709 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2008')) }